Are bad shots, blown leads at Australian Open ‘choking’?

  • Andy Murray of Britain reacts after defeating Matteo Berrettini of Italy at the Australian Open tennis championship in Melbourne, Australia, Jan. 17. (AP Photo/Aaron Favila)

MELBOURNE, Australia — When Matteo Berrettini missed what should have been a simple backhand on match point against Andy Murray in the first round of the Australian Open last week, the crowd inside Rod Laver Arena let out a collective gasp of disbelief.